87199618

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{409}}^1\times {\mathrm{881}}^1$

素因数の和:1314

約数の個数: 24

約数和(自身を含む): 144286380

約数和(自身を除く): 57086762

約数列:

[1, 2, 11, 22, 121, 242, 409, 818, 881, 1762, 4499, 8998, 9691, 19382, 49489, 98978, 106601, 213202, 360329, 720658, 3963619, 7927238, 43599809, 87199618]

約数ペア:

[(1, 87199618), (2, 43599809), (11, 7927238), (22, 3963619), (121, 720658), (242, 360329), (409, 213202), (818, 106601), (881, 98978), (1762, 49489), (4499, 19382), (8998, 9691)]